Color

#28817c

#28817c
hex#28817c
rgbrgb(40, 129, 124)
hslhsl(177, 53%, 33%)
oklchoklch(0.551 0.082 189.6)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1761

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#81282c

#288150 · #285981

#7c2881 · #817c28

Split-complementary

Open in tool →

#812859 · #815028

#502881 · #81282c · #598128

Contrast

#28817c as textRatioAAAA largeAAAFix
Aaon white
4.64:1passpassfail
  • AAA: use #1e625e as the text (7.09:1)
Aaon black
4.52:1passpassfail
  • AAA: use #34a8a2 as the text (7.27:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28817c as the background.

Brands using this color

mcpConnect your agent — build around #28817c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #28817c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28817c-a2bcbe-d4599b-1f282d-e9f1ed?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md